Glass-blowing machine.



L. GROTE.

GLASS BLOWING MACHINE.

APPLICATION FILED H0121] 1908.

1,004,020. Patented Spt. 26, 1911.

5 SHEETS-SHEET 1.

L. GROTE.

GLASS BLOWING MAGHINB.

APPLICATION FILED NOV. 21. 190av Patented Sept. 26, 1911.

6 sHEn'rssHBI:T'2.

L. GR OTE.

GLASS BLOWING MAGHINE.

APPLICATION FILED NOV. 21, mos

Patented Sept. 26, 1911 5 SHEETS-SHEET 4.

Patented Sept. 26, 1911.

5 SHEETS-SHEET 5.

F i g .15.

4x 04 7 'mwzaau M L. GROTE.

GLASS BLOWING HAGHINB.

APPLICATION FILED NOV. 21, 1908.

UNITED STATES PATENT OFFICE.

LUDWIG GROTE, OF LONDON, ENGLAND, ASSIGNOR T0 AVANDO WARREN HUSSEY VIVIAN AND GEORGE LLEWELLYN DAVIES, BOTH OF LONDON, ENGLAND.

GLASS-BLOWING MACHINE.

To all whom it may'concem:

Be it known that I, LUowIo Gno'rn, engineer, a subject of the Em eror of Germany, residing at 177 Mount P easant road, Totteuham, London, E land, ha re invented certain new and use ul Improvements in Glass-Blowing Machines, ofwhich the foland finishing molds to open and close the same independently and when required; advantageously by the' air pressure acting upon pistons in cylinders, the movement of the pistons being transmitted by suitable means for example either by toothed sectors or through pairs of toggle joints to the parts of the divided molds.

I will now proceed to fully (describe this invention with reference to the accompany ing drawings in which Figure 1 is a perspective view of a glass bottle blowing machine with pneumatic means for opening and closing the molds according to the present invention. Fi :2 is a view on an enlarged scale of a g ass bottle blowing machine according to the ncsent invention partly in vertical section taken through'the center of .the machine; while thc'various molds in said machine are shown in elevation. -Fig. 3 is a' local view in elevation (on an enlarged scale looking in the direction of the arrow 3 (Pi 2) of one of the plates or supports rotata le in a vertical plane with the neck mold and pariszn mold thereon and the nozzle device and the core or mandrel and its operat' parts all shown in vertical section and showm the arrangement of pneumatic cylinders an air pipes and valves carried on said'plate or support with the air valves shown in vertical section. Fig. 4 is a local view of Fig. 3-

Speclflcation of Letters Patent.

Application filed November 21, 1908.

Patented Sept. 26, 1911. Serial no. 568,745.

Fig. 3 i. e. through the parison mold which is shown in the closed position. Fig. 6 is similar view to Fig. 5 but showing the two halves of the parison mold in the open position. Fig. 7 is a local view in elevation (alsoon an enlarged scale) of the finishing mold in the closed position; Fig. 8 is view in the open position. Fig. 9 is a side View in elevation of a modified. form of flashing mold namely Fig. 9 shows an ordinary. ty e of finishing mold with the halves of tlie mold provided with vertical hinges adapted to be hinged to vertical hinge pins, so that the halves swing open in a horizontal plane when used in the ordinary way which molds can lie utilized as finishing molds on this machine by removing the vertical hinge-pins and hinging the two parts on horizontal pins so that the mold parts open and close as in l igs. l and 2 and 7 and 8. Fig. 10 is a view at right angles to Fig. 9 1'. a. looklug in the direction of the arrow 9 Fig. 8; with the top of the finishing mold in section to show the arrangement thereof for fitting on to the neck mold. Fig. 11 is a local view ofthe lower part of the apparatus 2'. e. showing the horizontal rotatable table and the part of the machine below same the said lower part being shown in 'section to illustrate a modification in the method of conducting the air under pressure to the cylinders for operating the finishing molds. Fig. 12 is a local view of the central upper part of the machine showing the two plates or supports rotatable "in vertical planes with pneumatic means for imparting a. rotary movement to each said plate respectively. Fl 13 is a local view taken between the tw'o sazd'plates on the line 13l3 Fig. 12 looking in the direction of the arrow in said Fig. 12.

1 is the foot or bottom support of the machine in which is provided a. step-bearing for the vertical supporting column 2 which latter may advantageously he supported on ball bearings by means of the annular shoulder 3 resting on the collar 4 which latter is supported on the balls 5 in the ball-race in sat ball-bearing while the lowernmst. part of the column 2 is free to rotate within the is tubular and closed at the top and bottom ends.

The horizontal. work-table or sup ort 6 for the finishingmolds is adapted to e ad- 'ustedvertically and fixed at anydesired 5 4 eight upon thevertxcal central column 2 as for example said table 6 may have a downwardly extendingl collar or tubular portion 7 provided wi a set screw such as m the screw 8 with handle thereto for turning same so as to .lock, the turntable 6 at any desired point on the column to which same has been adjusted b means of the screw nut 9 which is revolv By an suitable means (such as a spanner r ever) upon the screwed portion of the exterior of the column 2-see Figl'.2.' On the upper part of "this verticalcolumn 2 there is mounted a \cross-head or" head-partlO upon which'are 2 rotatably mounted the vertically disposed late or supports 11 and 12 on the outer .00 of each of which plates 11 and 12 reectively is mounted the two parts forming e parison mold 18 and the two parts forming'the neck mold 14 and also pneumatically, o ted means on each said-plate or sup- Para o v I port 11 and 12-respect1vely for opening and closing these two-part molds 13 and 14 respectively thereon and the nozzle device 15 carryin the mandrel through which the air is su p ed for Blowing the ttle and which 7 nozz e device 15 also carries the core or mandrel and means for operating same for the formation ofthe openin of the bottle and 5 forming the interior 0 theneck of the bottle.

Air under pressure from any suitable source is admitted through the pipe 16 (Fig. 2) and asses thro the pipe 17:to

4c .the nozzle w 'ch blows t e bottle in the mold parts on the plate ll'and through the ipe 18 to the nozz e which blows .the hottle in the mold parts on the plate 12; and

furthermore air ,from this su ply is through the pipes 19 and coile see Figs. 1 an 2 and pipes21 each controlled by a valve 22) to the cylinders 23 and 24 respectively which latter cylinderscause or permit the closing or opening of .-6 as hereinafter described. Referring now more particularly to Fi 8:- --the air coming from the conduit 1 annular chamber 26 thence enters and passes down the central passa portion 28 the spin 1e 29,'which sp'indle at one end carries the air nozzle 30 which so latter constitutes the core.o'r mandrel forforming the opening imth neck of the hot- .tle and also for forming the interior of the neck of the bottle, while the other end of'this rew ed spindle 28, 29', has attached thereto as t e hand" wheel each end of the 'tion-of the mold in' one piece-One led,

ortion 20 communic'ation also with t e pi (Fig; 2%] for blowing the bottle is controlled two halves of the parison mold 133.

and valve 25 and passing into the 'i e 27.-in.the screwed 31 by whichsaid core or mandrel 30 is inserted into and Withdrawn from the mouth and neck ortion of the bottle. For convenience o the operator in opening and closing the air conduit 17 into the annular chamber 26 as aforesaid a double hand valve 25 may be provided (see Eig'. 3) namely a small hand wheel 25 is aflixedat valve spindle extending on opposite sides of the passage 17 see Fig. 3.

ach half of the neck mold 14 is formed of two ortions, each marked 14 in Fig; 3, the sai two pbrtions being fixedly attached to one. another so as to form the half porpart of which embraces and fits the molded nozzle 30 portion 32 ofthe nozzle device 15, while the other part is shaped so as to im art the de-' sired orm of thehead and neo portion of the bottle to be molded a suitab e interior form of said neck mold 14 being shown in fiach'half of the parison mold 13 is pivoted independently to a verticalivot or hinge-pin 33 see Fig. 5 one. half of e parison mold 13 having a toothed quadrant or sector-like portion 34 thereon,'the other half having a similar toothed quadrant 'or sectorlike portion 35 fixed thereto: The teeth of the sector 84 attached to one half of the mold 13 as aforesaid are in engagement with the teeth -36 formin a rack Giimthe inter-v mediate part of the ouble-ended iston 37 (seeFig. 5) which end rtions o the pis ten are act don by the air in the closed end por "ans 0 the pneumatic cylinder 38; while the teeth on the sector 35. gear with the teeth on a similar piston m a similar cylinder 39. Similarly each half-portion of the neck mold 14 has a toothed quadrant or sector which engages with tacks or teeth on-similar' pistons+-the ends of which latter work in y the closed eiid'portions of similar cylinders 40 and 41.

The conduit 17 (Fig. 2 is in constant es 42 and 44 respectively her, inafter descri d.

It will of course be necessary to always close the two halves of the neck mold 14 1 upon the nozzle device 15 before closing the so the parts of the finishing molds on'the table two halves of the parison mold lHs the latter have to be h osed upon and embrace part of the closed neck mold gar-ts 14, and thereafter it is nary to rat 0 en the p'u'r and to operate the pnegiii tic cylinders 40, 41 and 38, 39; and" 1n file prglper. sequence'and in re ridirections; eair conningl throngl e condnit 17 Fi-g. 2} is con ucted t r0 h the pipe-12 Fig. 3 to the rotatable va we 43., and thence tothe c linders 88'and-39 as hereinafter descri in gamidetail and three h the pipe 44 to rotatable valve 454m thence to the glinders 40 and 41. Taking now theqvalve as will readily be -orthis pistons in the ,120

end of the cylinder 38 will force the piston along the cylinder and so close the half of the parison mold 13 attached to the sector 34, while the oppositely disposed iston in the cylinder 39 will be forced rom the other end of said cylinder e/in the opposite direction to the piston 37) and so simultaneously close the other half of the parison mold 13; so that the two halves are thus moved into the closed position as shown in Figs. 2., 3 and 5. In order to open the halves of the parison mold the valve 43 is now iven a quarter turn with the result that t to part 47 in said valve now puts the passage 50 in connnunication with the passage 46, and thus the air pressure from the pipe 42 passes through passage 46, port 47 (in this altered positionl) and passage 50 into the crosspipe 51 w iich in one direction leads to the opposite end of the cylinder 39 to thatto which the pipe -19 leads, andthis pipe 51 in the other direction leads to the end of the cylinder 38 opposite to the end thereof to which the pipe 49 leads; and on air being thus admitted to the pipe 51, the istons in the cylinders 38, 35) are now one: forced in the opposite direction and thereby force open the two halves of the parison mold 13 into the position shown in Fig. (3. When air is admitted through pipe 19 then the air in the opposite end of the cylinders 38, 39, can escape through the pipe 51, passage 50, port 52 and passage 53 and vice-versa, when air pressure is admitted through the pipe 51, the air in the opposite end of the cylinder can escape through the pipe -19 and thence through the passage 48, open port 52 in the valve and open passage 53. The valve 45 and its passages and connections is identical with the valve 43, and admits air either through the pipe 54 to one end of the cylinder 40 and to the other end of the cylinder 41, or admits air through the pipe 55 to the opposite ends of these respective cylinders. In order to insure the working in proper sequence of these pneumatic means for closing the parison mold and vice-versa; the handle 56 by which the valve 43 is operated and the handle 57 by which the valve 45 is operated 1nay be set to such an angle to one another and so connected by a cross-bar or tie-bar 58 {see Fig. 4) that on turning either said handle 6 or S'I'thc valve 45 will be opened in advance of the valve 43 so as thus to close the neck mold in advance of the )arison mold, while on the other hand the handles 56 or 57 can be moved in reverse direction for a sufficient distance so as to only reverse the valve 43 and open the parison mold when desired while leaving the neck mold remaining in the closed position.

If desired similar pneumatic means may be provided for imparting reciprocatory rotary movement through half of a circle to each vertical plate or support 11 and 12 respectively carrying the neck and parison molds as aforesaid; a suitable arrangement of such pneumatic means being shown in Figs. 12 and 13 in which the trunnion or collar 59 on the back of each said plate or vertical sup *t 11 and 12 respectively is provided wit. t toothed sector or partial ring of teeth b each of which latter gears with teeth 61 o]. a double-ended piston 62 in a pneumatic cylinder (33 fixed to the frame of the machine; so that by means of a circle to each sald plate 11 and 1:? respectively; or the latter may simply be providcd with a radially extending handle or handles 64 by which each said plate. 11 can be rotated (through half a circle) by hand.

Referring now more particularly to Fig. 11:-in this arrangement, instead of the air supply from the air inlet supply pipe 16 passing through the pipes 19, coils 20 and pipes 21 to the cylinders 23 and 2-1 for operating the finishing molds, the air supply is brou 'ht direct through the hollow central vertica 'spindle 2 to the lower portion thereof whence it is drawn off through an air-tight annular collar fitting the exterior of said lower portion of this column 2 in an air-tight manner and from this collar the air is conducted through the pipes 21 to the respective cylinders 23, 2-1-as shown in said Fig. 11.

Referring now to the drawings ener- 65 (having any suitable interior form) supported on the work-table 6 on which they are mounted (in the arrangement shown in Fi 1, 2, 7 and 8) by the lower end of each ha f art being ivoted or hinged to a horizonta il disposed pivotor hinge-pin 66 c. g. the un er-portion of each mold part- (15 may be provided with lugs or brackets adapted to turn on said horizontal pins 60 and also each mold part 65 provided with a laterally extending pin 67 to each of which is pivoted one end of one of the toggle levers or links 68 each said lever or link 68 being pivoted at 69 to the end of the piston rod 70 carried on the piston 71 operating in and operated by the pneumatic cylinder 21 or 23 supported on the under-side of the work-table 6 and supplied with air under pressure through the pipe 21 (e. 9'. either as shown in 1 and 2 or in Flg. 11) as aforesaid. en.

the mold is in the open position as shown in Fig. 8 and at the left-hand side of Fig, 2 the piston 71 is at or near the bottom of the cylinder 24; and on admitting air' under ressure through the pipe 21 said piston is orced u and thereby, as will readily be seen, wil force the two parts 65 of the finishing mold from the setgien position shown in Fig. 8 into the-clo position shown in Fig. 7 and as shown at the right hand side of Fig. 2. Air is separately and independ- Y ently supplied-by a separate independent pipe 21to the cylinders-23 and 24 as andwhen desired and each supply controlled by a se arate valve such as 22. When it is desire to open the finishing mold the air supply is cut off from the cylinder and the air therein allowed to escape and thereupon the mold parts 65 will readily swing open and may be either assisted, by hand or assisted by neumatic means if d laferring now to Figs. 9 and 10:--as man glass bottle manufacturers have large stocks of finishing molds of the ordinary vertical hinged ty ch as illustrated in Figs. 9 and 10-1t is of t importance to 'render it possible to utilize such existing two parts of these finishing molds bein arupon oriranged and adapted to be hinged ar manner to mental hinge-pins in a simi the mold parts 65 shown in Figs. 7 and 8' and these. mold parts (Figs. 9 and 10) can readily be provided with lugs or laterall exten pins 67 (as in Figs. 7 and 81m connec y 6% to tile iston rod (as in Figs..2 7 and 8 an and 10) can be mechanically operated so as to open andclose same in a vertical lane) to form the finishing mo d as aforesai and thus enable existing finishing molds of the ada ted and used on'this machine.

e supporting column 2 of the apparatus (with the work-table 6 and the vertical su ports or plates 11 and 12 with thexmol thereon) rotates readily on the foot 1 of the machine-advantageously on the ball bear- 1 as aforesaid.

p ra iv i l to operate the molds means of links or toggle evers "ereby these mold parts (Figs. a

, scribed aforesaid vertical hinged pattern to be in succession and has merely t0 exerts slight, I

efiort in order to bring the various molds into position. y

The. lates 11 and 12 are provided with means or setting them (as for example the self-acting spring bolts or latches 72, Fig. 2 a

which act automatically at the end of onehalf turn and stop-blocks or stopieces 73 which at the end of the opposite alf-turn come to rest against fixed stops carried on the machine) so that the neck mold 14 and the hopper-shaped parison mold 13 always set themselvts and are held in vertical alinement and are located relatively to the nozzle device 15 in such a manner that the latter is either below the neck mold 14 and the parison mold 13 above the latter, or over these molds 13 and .14. The nozzle device 15 of "each of the plates 11 and 12 is supplied with compressed air through the hollow shaft on which these plates are mounted and to which compressedair is constantly supplied.

1 When desired to form bottles with an internal screw thread in the .neck of the bottle the end 30 of the spindle 29' is formed screw-threadedin suchwise, that when the spindle is screwed in after the glass have been filled the necks of the b les formed. are thus internally screw-threaded.

The two parts of the two molds 13 and 14 rspectively may be adjustably mounted on the rotatable p ates 11 and 12 respectively, or ma plates 11 and 12 respectively: The worktable 6 is also arranged in such a manner that it is able to receive finishin molds of different widths or) height so t at hollow glass articles of difierent width orheight may be formed on this machine.

The operation of this glass blowing machiiie is as followsz-One of the vertical supports or plates 11 or 12, say for example the plate 11 is. rotated or ad usted in such j a manner that the neck mold parts 14 in the open position are located above the nozzle device 15;while the hopper-shaped parison mold parts 13 in t-ht open position are 10- above' and adjacent to said open head -mold parts 14. By now openin the air valve 45 (F' 3) .as for exampleiy means of either of e connecting valve lever han- -dles 56 or 57 air pressure is admiited'to the cylinders 40 41, so as to quickly close the parts of the neck mold 14, as before deand cause same to fit tightly upon the molded pat-H82 of thev nozzle device 15 as before described; and immediately-fliersafter by similarly orotherwise turnidg the valve 43 (Fig. d3), air is admitted to the- 125 in e pneumatic cy 38 and 89- and thereby the parts of the paris'on mold 13 are quickly closed and fit over part' of the exterior of the neck mold against which they fit tightly sothat with the parts of the molds 13 and olds be made adjustable upon the supports y which they are mounted 'on said the said ball or Ll thus closed, and in the position shown in Fig. 3 and in the left hand of Figs. 1 and 2, the combined mold thus formed is ready to receive the char e of molten glass through the open upturne end of the parison mold the nozzle 30, Iorming the core or mandrel, being screwed back or otherwise withdrawn out of the mold chamber thus formed or not as desired. A suitable quantity of glass 3 in a suitable molten condition can then be placed into the combined mold thus formed for example said combined mold may be filled up to about two-thirds or three-fourths of the height of the internal chamber formed 5 in said combined mold see Fig. 3; the screw spindle 28, 29, is then rotated by the hand wheel 31 so as to project the nozzle end (through which the air for blowing the bottle, etc., is subsequently introduced thsough the central passage 27) into the molten glass in the neck mo d, thereby forming the opening in the bottle neck, and thereupon compressed air is admitted by opening the valve 25 throu h the nozzle passage 27 5 into the interior oi the mass of glass which is thereby blown into a ball or so-called parison; and thereupon the air supply is cut oil again by the valve 25 all these operations being performed while the molds 3 remain in the position shown in Fig. 3 and the leftdiand side of Fig. 2. The ball or parison havin thus been formed and the finishing mol having been placed in the open position below said combined mold 5 parts, as shown in the leftrhand side of Fig.

2, and everything being in readiness, theair valve controlling the air supply to the pneumatic cylinders 38, 39, is then reversed or so operated as to cause the pneumatic 0 pistons in said cylinders to quickly open and lay right back (outof the way) the two halves of the parison' mold 13-thus leaving the ball 0r parison in the inverted position with the neck or mouth portion of this ball 5 or parison formin the partly made bottle (or other article w iich is being blown). still held in the neck mold whereupon the vertical support or plate 11 is now rotated throng 180 and then brought to rest, thus 0 swinging, by the neck, the partly formedbot-tle (or so-ca-lled ball or pafison3la around or through half a circle and so that it now hangs below and is suspended bythe neck, and as the molten mass now tends to 6 elongate'itself the operator opens the valve 22 controlling the admission of air to the cylinder 23 which thereupon quickly closes the two halves of the finlshi mold upon and around and so as to comp etely inclose risen the finishing mold being so ad usted and arrangedto tit closel or sufliciently closely against the neck mo (1; or if desired the parts 65 of said' finishing mold may surround and inelose a 5 part of the exterior of the neck mold 14.

With the combined mold thus formed by the closed parts of the finishing mold 65 and neck mold 14 (as shown at the right hand side of Fig. 2) further supply of compressed air is then admitted, by again opening the valve 25. through the nozzle pa: sage 27 to the interior of the partly made bottle. to

bottle by screwing or otherwise; and if itis a screw-neck bottle this withdrawal is offeeted by screwing said core onmandrel back (or barkward and forward) with the screw 28 (on the spindle 29) of the same pitch as the screw (on the nozzle-endIlO) to be imparted to the interior of the neck of the 85,

bottle. A partial turn is now (either before or after opening the neck mold) imparted to the horizontal table (3 so as to thereby carry around the molds j ust use-d away from. the operator and into position for a boy or. other attendant to subsequently remove the? newly blown bottle out of the mold: and at the same time this rotation of the table 6 and head-stock 10 of the machine will bring into position, before the operator, the 'other-* late with a fresh set 5 vertical support or of molds thereon, an a fresh finishin mold on the table 6 so that, while the bott e just made still remains in the former finishing mold, the operator can commence operations for blowing the next bottle, for which purpose, the charge of glass can be immediately placed in the combined mold formed by the parison mold 13 and head mold 14 (on the disk or support 12) which are of course moved into the closed and lip-turned position as shown in Fig. 3 and the left lmnd of Fig. 2fo'r receivin the char of glass; and during the time th s next mo ding and blowingoperation is being carried-out the last finished bottle can remain in its mold and the latter can be opened and the bottle rc moved lust prior to the completion of this second lowingoperation and so on. Thus the out'rput from;the machine is very eonsider'able.

When the blowing of each bottle is thi ished same may, if desired, be left, standing (during part of the next blowing operation) in the finishing mold alone 1 1*. after the core or mandrel and neck mold have been withdrawn therefrom, so as thus to afi'ord more time/for these parts to cool otl and consequently the air nozzles do not become unduly-heated and the manipulation of the machine is greatly simplified, while obviating the operator having to wait for t-h ti pmling oil of theseparts. Or if desired any suitable cooling means may be added or any suitable provision may be made for s ccially cooling any hen the finishing (by the means hereinbefore described or an other suitable means) the finished bottle is removed and placed in an oven or subjected to the usual or any suitable treatment subsequent to the blowing operation.

If desired, instead of opening the parison reliminary blowing opera escribed and swinging the ball or parison while held only by the neck mold after the tion as before portion through half a circle as. aforesaid the said parison moldparts may be allowed to remain closed around the partly blown bottle (ball or parison) while the late 11 (or plate 12) and the said close molds 13 and 14 thereon (with the partlyblown bottle, etc, therein) are rotated or turned through 180 as aforesaid; and thereafter the parison'mold parts 13 may be opened and laid back out of the way, by pneumatic means as aforesaid, and then the finishing lass formparison and t e blowing mold closed around the molten ing the ball or operation then filllSllEd as aforesaid.

The neck glass blowing or not.

Although the present invention has been described and illustrated more particularly with reference to a double machine arran ed to rotate around a vertical axis neverth ess other forms of machine may be employed without departing from the spirit and the scope of this invention as for exampleI may employ other than two vertical plates or rts such as 11 and 12 each provided wit its 'set of neck and parisonmold parts thereon and pneumatic means for operating said mold arts (for exam 1e instead'of a I may arrange a quadruple machine) and I may arrange or other suitable number of finishing mo ds to 006 crate with the said neck and parison mol s and also any such mac-hine'may be arran ed to'reciprocate in a huiilontal plane on y' partly around its' sup double mac ine as illustrat corres ndin vertical axis.

of the parts as desired. mold has been opened mold parts and the parison mold parts may be respectivelyso mounted on the vertical supports or plates, such as 11 and" 12, as to be readily changed (or adjusted as aforesaid) when desired; and similarly with the finishing mold parts on the turn-table 6.

Owing to the fact that the opening and closin of the molds and also the blowing of the ha 1 or parison in the parison mold-and the final blowing operation for blowin the bottle (or other article). in the finis ing mold takes placeunder air pressure, the various operations of this glass blowing machine are purely mechanical and consequently can easily be cifectcd by any competent person whether versed in the art of well as below the finishing molds as shown in Fi 1 and 2-may if desired be arran ed direc y underneath the finishing mo ds (#1. e. arranged on the underside of the table 6 directly 'below said finishing molds) with suitable connecting ear to open and close the arts of the finis ing mol 5.

T is machine does not require any driving power to set it-with the finishinlg molds and the work-table -in motion. urther more it does not necessaril require a specially divided finishing mol but on the contrary the molds hitherto used in hand-blow-" ing can be employed. In order to (2pm and close the 'neck and parison and nishing g 'molds air is or can be used from one and the J same source as that used for blowing the bottle. v

a The construction of this glass blowing ma 'chine'is so designed that the various machine parts are connected with each other without spring pressure and without telescopic elongatlons, and in such a way that by merely operating the air distri ution valves the opening and closing of the molds and the blowing of the glass mass are effected. Also so far as I am aware, there is no previous machi'ne em loying a work-table rotatin about a vertica shaft and on which the finishing molds are present in lural number, wherein there are arranged or the finishing molds a. like number of parison and neck molds on lates or $11 1ports '(such as the disks 11 an 12) rotata e in a vertical plane and located above the finishing molds.

What I claim is I v 1, In a machine for blowingglass bottles or the like hollow objects-,the combination with a neck mold having half arts to each of which is connected a tooth sector gear- 105 ing with a rack adapted to be reciprocated and pneumatic means forimparting such reci rocato v action to said rack substantial y as an for the pnliposesset forth. a 2. In a machine for b owing glass bottles or the like hollow objects-the combination with a parison mold having half parts to each of which is connected a'toothed sector gearing with a rackadapted to be recipro- 'cated and pneumatic means for imparting such reciprocatory action to said rack'sub- 'stantially as and for the purposes set forth.

7 3. In a machine for blowing glass bottles or the like hollow objects-the combination of a neck 'mold and a parison mold each 120 made in halves, each hal having connected thereto a toothed sector ring with a rack adapted to bereciproca and neumatic means for impart: such reclprocatory action to said raeksu stantially as and. for the purposes set forth.

' I 4. In -.a machine for blowing glass bottles .or the like hollow objects-the combination of a neck mold made in-halves, each half having a toothed sector, a separate rack for 130 each such sector-formed on the intermediate part of a double-ended piston adapted to he reciprocated, and pneumatic means to impart reciprocatory motionto said piston, substantially as and for the purposes set forth. v

5. In a machine for blowing glass bottles or the like hollow objectsthe combination with movable parts of a parison mold made in parts of a toothed sector, a separate rack for each such sector-formed on the intermediate part of a double-ended piston adapted to be reciprocated, and pneumatic means to impart reciprocato motion to said piston, substantially as an for the purposes set forth.

6. In a machine for blowing glass bottles or the like hollow objectsthe combination with a neck mold and a parison mold made in halves each half provided with a toothed sector, a separate rack for each such sectorformed on the intermediate part of a doubleended piston adapted to be reciprocated, and pneumatic means to impart reci rocatory motion to said piston, substantiali; as and for the purposes set forth.

7. In a machine for blowing glass bottles or the like hollow objects-the arrangement on each half part of the neck mold and parison mold respectively of a toothed sector gearing with a rack operated reciprocally by pneumatic means in combination and arranged to act in conjunction with a finishing mold each half part of which latter is arranged and mounted in suchwise as to enable each such part to swing or turn upon a horizontal axis to open and close such finishin mold, pneumatic means for operating sai finishing mold parts, and means connecting the latter to the former, all substantially as and for the purposes set forth.

8. In a machine for blowing glass bottles or the like hollow objects-the arran ement on each half part of the neck mo d and parison mold respectively of a toothed sector, a separate rackfor each such sectorformed on the intermediate part of a doubleended piston adapted to be reciprocatcd pneumatically and pneumatic means to operate said rack, in combination and arranged to act in conjunction with a finishing mold each half part of which latter is arranged and mounted in suchwise as to enable each such part to swing or turn upon a horizontal molds, and finishing molds, the arrangement of each set of neck and parison molds on a vertically disposed disk or support rotatable in a vertical plane in combination with means to automatically hold fast said rotatable disk or support in each limit position to which it is desired same should be rotated, pistons having the end portions arranged to be acted on by air pressure in cylinders and the central portion provided with rack teeth, sectors en aging with said racks, arms attached to sai sectors and connected to the respective parts of the mold, air distribution valves, and conduits connecting same with the air cylinders, said air distribution valves being connected and arranged in suchwise that air is first admitted to close the neck mold' parts and next the parison mold parts and vice-versa when said valves are reversed and one or more finishing molds for each said set of neck and parison molds, the said finishing molds being disposed on a work-table rotatable horizontally, and pneumatic means for closing the halves of said finishing mold, all substantially as and for the urposes set forth.

In witness whereo I have hereunto set my hand in presence of two witnesses.

LUDWIG GROTE.

Witnewes:

HENRY Bmxnnox, H. D. JAMESON.

Copies 01' this patent may be obtained tor five cents each, by addressing the commissiondr of Patents,

Washington, D. 0." I 

